Road sign



O. A. RYSTROM March 18, 1930.

ROAD SIGN Filed July 2l, 1927 Inventor Patented Mar. 18, 1930 UNITED STATES r Aorrici:

OSCAR ALBIN RYSTROM, OF YGRK, NEBRASKA ROAD SIGN Application led July 21,

This invention relates to new and useful improvements in road signs and aims to provide a sign board mounted for revolution upon a post and that is of such a construction 5 throughout its length that the sign will rotate at relatively slow speed regardless of the velocity of the wind, with the result that the advertising matter on both sides of the sign proper may be easily read by passing motor- 10 ists.

The invention further aims to provide a rotating sign that will by reason of its continuous rotation attract the attention to a much greater degree than the stationary road signs now almost universally in use.

With the foregoing and lother objects in view as the nature of the invention will be understood, the same comprises the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed.

In the accompanying drawings forming part of this application and in which like reference characters designate corresponding parts: L n

Figure 1 is a view mainly in side elevation and partially in cross section of my improved sign.

Figure 2 is a top plan view thereof.

Figure 3 is an enlarged fragmentary section through the upper frame bar of the sign member per se and the upper end of the supporting post for more clearly disclosing the bearing connection therebetween, and

Figure l is a perspective of one of the end cleats used in the assembly of the sign unit per se. p

Now having particular reference to the drawing, my novel sign embodies the provision of a vertical post 5 of any predetermined length and diameter suitably anchored at its lower end within the earth as suggested by the dotted lines in Figure 1.- The signy unit, per se, consists of a pair of bars 6 6 adapted for arrangement in horizontally disposed parallel spaced relation and are each formed at their central portions with a relatively Wide portion 7. This widened portion terminates at one end of the enlarged portion at 7 and at the opposite end thereof at 8.

1927. Serial No. 207,439.

From these points, the opposite edge portions of the respective portions of the bars at opposite sides of the central portions thereofy are curved longitudinally. These curved portions are denoted by the numeral 11, the cur- -515 vature of one of these portions being at one edge thereof, while the other portion is curved at its opposite edge portion, in the manner-,clearly shown in Figure 2. The innermost portion 11 of the inner curved edges 60 of the respective curved portions of each bar are disposed on extensions of the longitudinal axis of the portion v7, the said innermost point of the curved portion being located at substantially one-fourth the distance inwardly 65 y i from the ends of each bar. Arranged at opposite sides of the bars 6 6 and spanning said bars are strips of sheet metal 8 8, shaped to conform to the curvature of the bars, the ends of which are extended beyond 70 the ends of the bars and are curvedon a smaller arc than that of the'edges of the bars as clearly disclosed in Figure 2. The ends of the strips of sheet metal at opposite sides of these bars 6 6 are suitably joined'together, 75

`while arranged over the ends of said bars 6 6 and within the sheet metal strips are metallic tips 9 which are shaped to conform'to the curvature of the ends of the bars 6 6 and the ends of the metallic strips 8 8, The side 80 edges of these tips are flanged as at 10-10 which ianges engage over the edges of the bars 6 6 and between the metallic stripsV 8 8. Said tips may be secured to the bars and' their flanges to the strips 8 8 in any 85 desirable manner. This formationy of the sign board will provide relativelyy elongated air pockets 11 11 at the ends of the board and opposite sides thereof while opposed toV the pockets throughout the greater length 99 thereoffare vertical walls 10 to counteract to a highdegree the velocity of the wind striking the pockets which will limit the rotation 'of the board regardless of the wind velocity.

The lowermost bar 6 is formed centrally 95 with an opening 12 of a diameter greater than that of the post 5 and through which said post extends. The bottom surface of the Vuppery most bar 6 is formed with a circular socket 13 directly in alinement with the opening 12 iii-100 the lowermost bar and l within which is a Y suitable ball bearing structure 14. Arranged within the upper end ofv the post is a block 15 formed centrally with a verticallyextending pin 16 engageable in the bearing 14: as clearly disclosed in Figure 3. The sign is therefore rested invanti-rictional engagement upon the upper-end of the post so that it may be easily c turned by the wind. However, I do not desire to be understoodas relying upon any particular character of vbearing connection Vbetween the sign unit and the post as this is not toV any extent whatever the essence V'of the invention. Y

Having thus describe'd'the invention, what YI claim asnewand desire tosecure by Letters Patent is y 1. Inra revolving sign of the character described, anelongated and narrow board mem- Y ber, the center of said member being oi' enlarged thickness, the portions of the mem- -ber extendingoutwardlyfrom the enlarged portion being of curvilinear ormation, the curved portions being curved in inverse di- 125 rections from Vthe 'enlarged portion, the innermost point of each curved portion being located ata point substantially one-fourth of thedistance inwardly 4from the outer end of the member, and on an extension of the lon- .gitudinalaxis or the enlarged portion, and a support, upon which the board member is adapted to be pivotally mounted at its enlargedportion. v

V2'. In arevolvingsign ofthe character de- '35' scribed, an elongated and narrow board member,tlie center of said member being of env lar-ged thickness, the portionsof the member Y extending voutwardly `from the enlarged portion `being of curvilinear formation, the o curved portions comprising oppositely dis-p .posed circular arcs, the innermost point of each curved portion being located at a point substantially one-fourth of .the distance inywardly from the outer end of the member, said innermost point ofthe respective curved Y portions being disposed substantially on `eX- f Y tensionso'f the longitudinal axis of the thick- Y,

Y ened portion ofthe board. member, a tip mem'- Y 1 ber at each end of the board member, sa-id ,50 tips being each ofsjarcuate shape and in jcurvilinear relation with theadj acent curved 'portions of the board member, the arcuate Y curved construction being of relatively less Ydizun'etrical `curvature thany the `adjacent l fcurved portions of the vbcard'member, anda support Vupon -whiclirthe boardV member lis t adapted toy be pivotally mounted` at its'enf larged central portion. Y --In testimony whereof IV laiix my signature.

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